First I don't want this to be an ECU debate...I will assume for sake of discussion all after market ECUs are created equal... Here's the facts:Installed JWT intake/ecu and boost jets and Blitz boost gauge, stock catback...without jets boosting 8.4psi...with .035 jets boosting 10.2psi...just inserted .030 welding tips boosting 10.8psi...took the car to Nissan and they said I have no leaks, car performing normally...so my question is if I add say a Stillen catback will my psi increase? and also do you think something else is going on here...I could add .025 jets and probably boost into 11psi...thanks in advance
